




The Grodan Pargro Biggie 6 inch x 6 inch x 6 inch Block is the ultimate solution for hydroponic growers seeking superior moisture control and outstanding root development. With its exceptional dryness, these value-priced rockwool blocks are the perfect choice for maximizing plant health and productivity.
The Pargro line by Grodan has been specifically modified to offer the driest value-priced rockwool on the market. Unlike other brands that compromise quality for a lower price, Pargro stands as the leader in affordable horticultural rockwool. With Pargro, you can be confident in the high-quality product you receive, as it is made right in the Grodan factory.
The Pargro blocks take moisture control to the next level. They are up to 14% drier than Cultilene Comfort blocks and up to 10% drier than the previous Neptune slabs. This exceptional dryness ensures that your plants receive the perfect balance of water and oxygen, promoting vigorous root growth and overall plant vitality.
When it comes to selecting the right block for your hydroponic system, the Pargro Biggie is an excellent choice. With its larger size of 6 inch x 6 inch x 6 inch, it is ideal for ebb and flow systems that require a big block. The capillary movement in most flood tables generally does not reach above 4 inches in a block, making the Biggie perfect for maintaining a drier top and preventing waterlogged conditions.
The Grodan Pargro Biggie blocks offer numerous advantages. Their superior drainage capability reduces the risk of root rot and ensures proper nutrient uptake. The uniform fiber structure of the rockwool guarantees optimum nutrient and pH control, providing your plants with a consistent growing environment. Additionally, these blocks are produced at the Grodan factory and are known for their firmness and uniformity.
For over 14 years, commercial growers worldwide have trusted and relied on Grodan Pargro QD Biggie blocks for their hydroponic operations. The combination of quality, affordability, and exceptional performance makes these blocks a smart investment for both experienced growers and beginners.
Why did Grodan create Pargro? The need for an affordable, quality rockwool with rapid drainage led to the development of Pargro. While other lower-priced brands in the market fail to deliver on their promises, Pargro QD stands out. It offers a uniform product that effectively drains without falling apart. Experience the difference for yourself and see why Pargro is the trusted choice.
What sets Pargro apart from Grodan? Pargro utilizes specific types of wool for propagation, blocks, and slabs. On the other hand, Grodan configures the wool with Delta ® Technology for each of its product lines. The extensive range of products and sizes available in the Grodan line provides growers with more options. While Pargro's marketing and product support may be limited, Grodan offers comprehensive support and expertise to its customers.
Pargro Stone Wool Growing Media
Pargro is lightweight stone wool made from basalt rock. It's a highly uniform substrate that's pathogen, disease, and seed-free, offering consistent plant growth. Stone wool is inert, so it will not add or hold back any nutrients, giving you complete control over your plants. Pargro media has rapid water distribution and excellent re-saturation capabilities, making it easy to use.
The Pargro family of products are made in the most popular sizes that offer value to many growing situations, such as boutique or craft growers, growers transitioning from coco or soil, and small-scale enthusiasts.
Value
For growers who prefer easy and simple growing methods, Pargro offers excellent value. We've combined our legacy functionality with consistent, uniform, and quality products, all backed by 50 years of precision growing excellence. As a result, Pargro allows growers to use good stone wool growing media without compromising quality and consistency.
Ease of Use
Easy, fast saturation in the ideal range for sufficient rooting. Growers can use earlier, more frequent, shots for an effective vegetative phase. Pargro Stone Wool also offers rapid water distribution with good re-saturation capability. The vertical fibre structure affords a faster rooting in and strong root development.
Balanced Drain with Effective EC Refreshment
Pargro gives growers the best of both water worlds: balanced drain with moderate water holding capacity. In addition, Pargro allows for steady and stable EC refreshment so you can be more responsive. Pargro is an ideal stone wool growing media, for consistent results without the need for sophisticated irrigation schedules.

